cccc cccf cccl cccs ccfc ccff ccfl cclc ccls ccoc ccsf ccsl ccss cfcf cfcl cfco cfcs cfls cfos cfsl clof cloo clos clsc coco cofc coff cofs col- coll colo cols coof cool coos cosc cosl coso coss cscc cscf cscl csco cscs csfc csos fccf fcsc fcsl ffcc ffff ffss flcl floc floo flos foco focs fofo folc foll folo fols foof fool foos foso foss fscc fsfo fssc fssf lccc lccs lcfc lcls lcsc lfcc llcc llcs lllc llll lloc lloo locc loco locs loff loll lolo lols looc loof lool loos losc loso loss lsco lscs lsfc lsof lsso occc oclc ocos ofcl off- offc offo offs olcc olfs ollo olof olos ooff oofs oolo oooo ooos oscc oscl osco oslo osoo osos osso s-os sccc sccl sccs scfc scl- sclc scls scol scoo scsc scsl scso sfcc sfco sfcs sffc sflc sfls sfos sfss slcc sloc sloo slos slsc socl soco socs sofo solf soll solo sols soof sool soos soso soss sscc sscs ssfc ssfl sslc ssoc sssc sssf ssss